Monday, August 29, 2011

What Makes Soy Such a Risky Food to Eat?

Here is a summary of soy’s most glaring problems.

1.91 percent of soy grown in the US is genetically modified (GM). The genetic modification is done to impart resistance to the toxic herbicide Roundup. While this is meant to increase farming efficiency and provide you with less expensive soy, the downside is that your soy is loaded with this toxic pesticide. The plants also contain genes from bacteria that produce a protein that has never been part of the human food supply.

Disturbingly, the only published human feeding study on GM foods ever conducted verified that the gene inserted into GM soy transfers into the DNA of our gut bacteria and continues to function. This means that years after you stop eating GM soy, you may still have a potentially allergenic protein continuously being produced in your intestines.

Soy foods contain anti-nutritional factors such as saponins, soyatoxin, phytates, protease inhibitors, oxalates, goitrogens and estrogens. Some of these factors interfere with the enzymes you need to digest protein. While a small amount of anti-nutrients would not likely cause a problem, the amount of soy that many Americans are now eating is extremely high.

3.Soy contains hemagglutinin.

Hemagglutinin is a clot-promoting substance that causes your red blood cells to clump together. These clumped cells are unable to properly absorb and distribute oxygen to your tissues.

4.Soy contains goitrogens

Goitrogens are substances that block the synthesis of thyroid hormones and interfere with iodine metabolism, thereby interfering with your thyroid function.

5.Soy contains phytates.

Phytates (phytic acid) bind to metal ions, preventing the absorption of certain minerals, including calcium, magnesium, iron, and zinc -- all of which are co-factors for optimal biochemistry in your body. This is particularly problematic for vegetarians, because eating meat reduces the mineral-blocking effects of these phytates (so it is helpful—if you do eat soy—to also eat meat).

6.Soy is loaded with the isoflavones genistein and daidzein

Isoflavones are a type of phytoestrogen, which is a plant compound resembling human estrogen. These compounds mimic and sometimes block the hormone estrogen, and have been found to have adverse effects on various human tissues. Soy phytoestrogens are known to disrupt endocrine function, may cause infertility, and may promote breast cancer in women.

Drinking even two glasses of soymilk daily for one month provides enough of these compounds to alter your menstrual cycle. Although the FDA regulates estrogen-containing products, no warnings exist on soy.

Nearly 20 percent of U.S. infants are now fed soy formula, but the estrogens in soy can irreversibly harm your baby’s sexual development and reproductive health. Infants fed soy formula take in an estimated five birth control pills’ worth of estrogen every day.

You may want to steer clear of soy products for no other reason than a commitment to avoiding GM foods... unless you wish to be a lab animal for this massive uncontrolled experiment by the biotech industry.

What Soy Products are Good For You?

I want to be clear that I am not opposed to all soy. Soy can be incredibly healthful, but ONLY if it is organic andproperly fermented.

After a long fermentation process, the phytate and “anti-nutrient” levels of soybeans are reduced, and their beneficial properties become available to your digestive system.

You may have heard that Japanese people live longer and have lower rates of cancer than Americans because they eat so much soy—but it’s primarily fermented soy that they consume, and it’s always been that way.

Fermented soy products are the only ones I recommend consuming.

These are the primary fermented soy products you’ll find:

·Tempeh a fermented soybean cake with a firm texture and nutty, mushroom-like flavor.

·Miso, a fermented soybean paste with a salty, buttery texture (commonly used in miso soup).

One of the main benefits of fermented soy, especially natto, is that it is the best food source of vitamin K2. Vitamin K2 is essential to preventing osteoporosis, cardiovascular disease, and diseases of the brain such as dementia, and protecting you from various cancers including prostate, lung, liver cancer and leukemia.

Vitamin K is sometimes referred to as the “forgotten vitamin” because its benefits are often overlooked. It was named after the word “Koagulation,” to reflect its essential role in blood clotting. In fact, the enzyme nattokinase—derived from natto—is safer and more powerful than aspirin in dissolving blood clots, and has been used safely for more than 20 years.

If you enjoy natto or some of the other fermented soy foods, you can get several milligrams of vitamin K2 from them each day (this level far exceeds the amount of vitamin K2 found even in dark green vegetables).

Unfortunately, the health benefits of many of the fermented soy foods fall by the wayside because many Americans do not enjoy their flavor.

If you don’t want to consume natto to get your vitamin K2, the next best thing would be to get use supplemental Vitamin K2 (MK-7). Remember, vitamin K must be taken with a source of fat in order to be absorbed.

I suggest adults consume about 150 mcg of vitamin K2 daily.

For a simple rule of thumb, just remember that unless soy is fermented (tempeh, miso, natto, or traditionally made soy sauce), you’re better off avoiding it.

Tips for Avoiding Unwanted Soy Foods

Soy foods to avoid include:

Tofu

TVP (texturized vegetable protein) or soy protein isolate, which contains a large amount of msg, which you should definitely not consume

The best way to eliminate non-fermented soy from your diet is to avoid all processed foods and instead purchase whole foods that you prepare yourself.

If you do buy packaged foods, you can check the label to see if it contains soy. The Food Allergen Labeling and Consumer Protection Act, which took effect in January 2006, requires that food manufacturers list soy on the label, because it’s one of the top eight food allergens.

So, even if soy is hidden in colors, flavors, or spice blends added to foods, it must be clearly stated on the label.

One other common source of soy is lecithin which is used as a emulsifier in many foods and supplements. Most lecithin in the US is derived from soy but there are some newer products that extract it from organic sunflower. We switched over to the organic sunflower lecithin a few years ago in all of our products.

If you wish to know more about soy, I have provided a list of links below to the many articles I’ve posted over the years on this subject. Remember, the only way to avoid falling victim to shrewd marketing and misinformation is to become knowledgeable about what the research actually says, and this is often different from what is commonly passed around as “fact.”